When using the Keyboard BLE feature, pressing ALT-TAB to cycle through
windows was not possible. This is now fixed.
OPT-L (for screen lock) also works.
(Previously ALT and OPT/META keys never set _modifier_mask, so they were
sent as raw scan codes (0xe2/0xe3) in HID keycode slots instead of
setting the modifier byte. The USB sender now skips keycode for
modifier-only events.)
(On non-modifier key release, both BLE and USB senders sent an all-zero
HID report, dropping any held modifiers (e.g. ALT released on TAB-up).
Release now always sends getModifierMask() in the modifier byte so held
modifiers stay active -- enables ALT-TAB window cycling.)
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
The previous commit replaces Fn-as-shift with Aa-as-shift. But because
Aa and A are close to each other, that makes pressing Shift-A hard. As a
feature, Fn will do Shift for A-Z.
(No third symbol is printed on letter keys, so this feature made sense.)
The shift is injected via a new extraModifiers field in KeyEvent_t so the
HID modifier byte is set correctly over both BLE and USB, rather than
relying on the physical Aa (shift) key state.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Walter Doekes
Forairaaaaa